Home / 87,572.10-120,852.48-51,792.78

Finding the Fourth Proportional to 87,572.10, 120,852.48 and 51,792.78

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Solution

The fourth proportional to 87,572.10, 120,852.48 and 51,792.78 is: 71,475.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,572.10 : 120,852.48 = 51,792.78 : x
  2. Step 2: Convert to fraction form
    87,572.10/120,852.48 = 51,792.78/x
  3. Step 3: Cross multiply
    87,572.10x = 120,852.48 × 51,792.78
  4. Step 4: Simplify right side
    87,572.10x = 6,259,285,909.09
  5. Step 5: Solve for x
    x = 6,259,285,909.09/87,572.10
  6. Step 6: Final answer
    x = 71,475.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.